There are several Illinois State faculty members who already use open textbooks. One of those is Dr. Christopher Hamaker, associate professor of chemistry. He uses a textbook published by OpenStax, based at Rice University. The book is free to read online and download as a PDF, or students can order a copy at the cost of printing. It was written and revised by academics, has undergone peer review, and includes instructor and student resources such as lecture slides and a solutions manual. In the following Q&A, Hamaker discusses his motivations for and experiences with using an open textbook: